@mkljczk/lexical-remark/lib/export/handlers/collapsibleContainer.js

This package contains Markdown helpers and functionality for Lexical using remark-parse.

import { CollapsibleContentNode } from '../../extensions/collapsible/content/node.js';
import { CollapsibleTitleNode } from '../../extensions/collapsible/title/node.js';
import { serializeFromRemark } from '../RemarkExport.js';
export const collapsibleContainer = (node, { rootHandler }) => {
    const [titleChild, contentChild] = node.getChildren();
    const titleText = titleChild instanceof CollapsibleTitleNode ? titleChild.getChildren()[0]?.getTextContent() ?? '' : '';
    const contentNodes = contentChild instanceof CollapsibleContentNode ? contentChild.getChildren() : [];
    const remarkNodes = contentNodes.map((n) => rootHandler(n, { rootHandler })).filter((n) => !!n);
    const contentText = serializeFromRemark({
        children: remarkNodes,
        type: 'root',
    });
    const remarkNode = {
        type: 'html',
        value: `<details><summary>${titleText}</summary>\n${contentText}\n</details>`,
    };
    return remarkNode;
};